Tzykka (tzee-kuh) are enormous, mastodon-sized lithotrophs native to . They are viewed as sacred prey by Charonites, who hunt them by driving them off of cliffs. They use their tusks and bones in the construction of huts and other dwellings. Their quills are used as poisonous throwing spears, their hides made into leather armor and shields. One tzykka can feed an entire tribe for many days.